WO2012126993A2 - Bobine d'inductance intégrée et procédé de réduction des pertes dans une bobine d'inductance intégrée - Google Patents

Bobine d'inductance intégrée et procédé de réduction des pertes dans une bobine d'inductance intégrée Download PDF

Info

Publication number
WO2012126993A2
WO2012126993A2 PCT/EP2012/055099 EP2012055099W WO2012126993A2 WO 2012126993 A2 WO2012126993 A2 WO 2012126993A2 EP 2012055099 W EP2012055099 W EP 2012055099W WO 2012126993 A2 WO2012126993 A2 WO 2012126993A2
Authority
WO
WIPO (PCT)
Prior art keywords
inductor
winding
magnetic
resonant
integrated
Prior art date
Application number
PCT/EP2012/055099
Other languages
English (en)
Other versions
WO2012126993A3 (fr
Inventor
Cezary Worek
Slawomir Ligenza
Original Assignee
Akademia Gorniczo-Hutnicza Im. Stanislawa Staszica W Krakowie
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Akademia Gorniczo-Hutnicza Im. Stanislawa Staszica W Krakowie filed Critical Akademia Gorniczo-Hutnicza Im. Stanislawa Staszica W Krakowie
Priority to CN201280014354.0A priority Critical patent/CN103635979A/zh
Priority to US14/005,268 priority patent/US9514875B2/en
Priority to EP12713924.4A priority patent/EP2689433B1/fr
Priority to CA2829807A priority patent/CA2829807A1/fr
Publication of WO2012126993A2 publication Critical patent/WO2012126993A2/fr
Publication of WO2012126993A3 publication Critical patent/WO2012126993A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/38—Auxiliary core members; Auxiliary coils or windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0064—Magnetic structures combining different functions, e.g. storage, filtering or transformation

Definitions

  • the present invention relates to an integrated inductor for use in resonant energy-conversion systems ensuring minimization of losses in a ferromagnetic core and to a method for reduction of losses in an integrated inductor.
  • Resonant energy-conversion systems despite of their advantages, such as sinusoidal currents, soft switching capability, wide operating frequency range, etc., are relatively slowly superseding the classical solutions based on hard switching. The reason is that in a resonant circuit the peak current values are substantially exceeding the maximum load current. Therefore, the reactance elements, both the capacitors and inductors, shall be designed to store relatively large amounts of energy. This problem can be solved by increasing both the weight and dimensions of reactance elements. However, such approach is not economically viable, since it entails additional costs and, consequently, a higher price. A further unfavourable effect is the decrease in energy efficiency, because the increase in the inductive elements dimensions in resonant energy-conversion systems results in considerable losses in windings, particularly at frequencies above 100kHz.
  • the US Patent No. 5,886,516 presents an integrated multi-winding magnetic element intended for operation in a series resonant converter, in which on a single "UU" gapped magnetic core there are located two windings of an isolation transformer and two additional windings constituting two inductive elements of the resonant circuit.
  • This assembly constitutes a resonant circuit consisting of three inductances, two capacitances and the isolation transformer.
  • An integrated-magnetic apparatus is known from the US Patent No. 5,726,615 comprising three ferromagnetic pot cores, two of which have central core-columns carrying two flat windings placed around these columns. These two inductive elements constitute a transformer.
  • the third ferromagnetic pot core has a shorter central core-column around which a flat winding is placed.
  • the third core- piece located adjacent to a flat exterior surface of the transformer allows to form the third inductive element.
  • the third inductive element is partially coupled magnetically through an air gap to the other windings and is phased to have the magnetic induction in the same direction as the magnetic induction in the un- gapped magnetic circuit.
  • the US Patent No. 7,525,406 presents a structure that contains a plurality of coupled and non-coupled inductive elements and at least one closed magnetic circuit comprised of mutually contiguous magnetic elements having groves for current conductors in the X-axis and a perpendicular Y-axis.
  • the current conductors located along the same axis exhibit mutual inductance but none between mutually orthogonal axes.
  • the Polish patent application No. 393133 presents a method for increasing the power transferred by an integrated inductor characterized by positioning an integrated inductor's windings orthogonally with respect to each other and the choice of induction elements values so that magnetic flux of the auxiliary magnetic circuit is transferred through at least a portion of the main magnetic circuit transferring the main magnetic flux while both magnetic induction vectors are oriented orthogonally with respect to each other, in addition both variable in time magnetic induction vectors are shifted with respect to each other in the time domain.
  • the object of the invention is an integrated inductor comprising a multi- winding inductor having a transformer winding and a resonant inductor, wherein sections, of the magnetic circuit of the transformer winding are incorporated into magnetic circuits of at least two parts, of a resonant inductor so as to form common parts of magnetic circuit of the multi-winding inductor and at least two- part, resonant inductor, wherein the transformer winding of the multi-winding inductor is wound around a column, which has at least one air gap having a width adapted so that the magnetic induction produced by the at least two-part, resonant inductor does not exceed 25% of the magnetic induction produced by the transformer winding of the multi-winding inductor.
  • the transformer winding of the multi-winding inductor is wound around the column in a single layer.
  • the transformer winding of the multi-winding inductor is a pitched winding wound around the column.
  • the column, over which the transformer winding of the multi-winding inductor is wound comprises two air gaps at its ends.
  • the integrated inductor it comprises magnetic core-pieces that constitute a magnetic circuit with parallel columns magnetically connected with the yoke whereas the transformer winding of the multi-winding inductor is wound on the column parallel to columns on which the windings, of the resonant inductor are wound.
  • the integrated inductor further comprises columns, parallel to the yoke, with further windings of the resonant inductor which are wound around said columns.
  • the integrated inductor comprises magnetic core-pieces circumferentially arranged around the column having the transformer winding, wherein windings of the resonant inductor are wound on said magnetic core- pieces.
  • Another object of the invention is a resonant power supply comprising the integrated inductor according to the invention, wherein the multi-winding inductor acts as the output transformer and the inductive element is connected in series through the resonant inductor with with transistor switches.
  • the invention also relates to a method for reduction of losses in an integrated inductor comprising a multi-winding inductor having a transformer winding and a resonant inductor, wherein sections, of the magnetic circuit of the transformer winding are incorporated into magnetic circuits of at least two parts, of the resonant inductor so as to form common parts of magnetic circuit of the multi- winding inductor and at least two-part resonant inductor wherein the transformer winding of the multi-winding inductor is wound around a column, which has at least one air gap having a width which is adapted so that the magnetic induction produced by the at least two-part, resonant inductor does not exceed 25% of the magnetic induction produced by the transformer winding of the multi-winding inductor.
  • Fig. 1 shows a half-bridge structure of a multi-resonance power supply with a quality-factor limiter based on an integrated inductor ZER according to the first embodiment.
  • Fig. 2 shows the first embodiment of the integrated inductor wherein variable magnetic inductions produced by the multi-winding inductor, which also functions as an output transformer, and by the resonant inductor, are oriented parallel with respect to each other in such a manner that the resultant time- variable vector of both magnetic inductions attains its minimum value.
  • the central column of the magnetic core incorporates an air gap.
  • the magnetic core central column incorporates an air gap and the directions of currents are chosen so that they are opposite in phase (a 180° phase shift).
  • Fig. 5 shows schematically the second embodiment of the integrated inductor
  • Fig. 6 shows the example of its application in a resonant power supply circuit.
  • Fig. 7 shows schematically the third embodiment of the integrated inductor
  • Fig. 8 shows the example of its application in a resonant power supply circuit.
  • Fig. 9 shows schematically the fourth embodiment of the integrated inductor's spatial structure.
  • Fig. 1 shows the first example of application of the integrated inductor according to the invention in a resonant-mode power supply circuit.
  • the integrated inductor ZER1 comprises a resonant inductor L2 consisting of two inductive elements L2A and L2B connected in series and a multi-winding inductor, which also acts as the output transformer, composed of three inductive elements L1 , L3, L4 having a common magnetic circuit.
  • Fig. 2 shows the first embodiment of the integrated inductor according to the invention.
  • the integrated inductor comprises two doublE" shaped core-pieces assembled with their legs joined together and two relieU" shaped core-pieces whose legs are joined to the corners of said two relieE" shaped core-pieces.
  • These core- pieces constitute columns 1 1 , 12, 13, 14, 15 parallel with respect to each other whereas the multi-winding inductor winding L1 is wound around the column 1 1 .
  • the intermediate columns 12, 13 have no windings.
  • Around outer columns 14, 15 there are wound windings L2A, L2B of the two-part resonant inductor L2.
  • Columns 1 1 -15 are connected by means of yokes 21 , 22 that close the magnetic circuit.
  • the multi- winding inductor magnetic circuit comprises at least one air gap G that enables controlling the maximum magnetic induction value in the magnetic core and therefore power losses occurring in the core.
  • the width of the air gap G is chosen so that magnetic induction produced by the at least two-part L2A, L2B resonant inductor L2 does not exceed 25% of the magnetic induction produced by the multi- winding inductor's transformer winding L1 .
  • a single-layer, preferably pitched, winding having a break over the air gap minimizes the magnetic coupling between magnetic elements, ensures symmetry of the windings and minimizes the losses associated with the influence of magnetic field around the air gap.
  • the resonant inductor winding utilizes two relieU" shaped core- pieces on which the windings L2A and L2B are placed.
  • the preferable directions of magnetic induction produced by the integrated inductor windings are depicted in the form of curves drawn in dashed lines with arrowheads indicating the direction, while in Fig. 3 the current flows only through the element L1 , whereas in Fig. 4 through elements L1 and L2.
  • An advantageous feature of the integrated inductor shown in Fig. 2 is the ease of adjustment to different values of power transferred by means of typical magnetic elements of a suitable size. Due to parallel positioning of the multi-winding inductor winding L1 with respect to resonant inductors' windings L2A and L2B, the magnetic inductions produced by these windings are also parallel oriented. The winding L3, most often wound over the L1 winding, is not shown in Fig. 2 to increase its clarity.
  • the amplitude of magnetic induction can be reduced within a certain range and, consequently, a reduction of losses in the magnetic core can be achieved.
  • the phase shifts between the magnetic inductions superimposing in a selected portion of the magnetic circuit are chosen so as to achieve the smallest possible losses.
  • the phase shift between magnetic induction vectors produced by inductors L1 and L2 is basically 180°
  • the integrated inductor according to the invention has a particularly desirable feature that two inductive elements L2A, L2B utilize portions 1 and 2 of the multi- winding inductor and losses in common branches of magnetic circuits can be substantially reduced by means of reduction of the magnetic induction vector amplitude.
  • Fig. 3 and Fig. 4 show results of simulation of the magnetic induction vector distribution in the integrated inductor according to the invention.
  • the central column of the magnetic core incorporates an air gap. This is the initial condition, which is the basis for comparison because there are no compensating magnetic inductions from the resonant inductor.
  • the central column of the magnetic core incorporates an air gap and directions of currents in windings L1 and L2 are chosen so that they are phase-shifted by 180°.
  • the magnetic induction current has been decreased from a value of 0.8 arbitrary units to the value of 0.45 arbitrary units. In such a situation, it is possible to assess a relative change of the power of losses, assuming that there is a square relationship between the value of power of losses in the core and the value of the magnetic induction: P V ⁇ B) ⁇ B 2
  • the magnetic induction amplitude is reduced within 33% of the core volume and the magnetic induction amplitude decreases from 0.8 arbitrary units to 0.45 arbitrary units then, due to the reduction of magnetic induction within 33% of the core volume, thermal losses in chosen portions of the magnetic circuit decrease by 67% and by 20% in the whole core.
  • Fig. 5 shows schematically the second embodiment of the integrated inductor
  • Fig. 6 shows the example of its application in the resonant power supply circuit.
  • the second embodiment is equivalent to the first one except for the fact that it contains two air gaps G1 located at the ends of the column 1 1 , between the magnetic element of column 1 1 and the yoke 21 , 22.
  • the advantage of this solution over the configuration comprising a single gap G in the middle of the column 1 1 is that it allows to achieve the self-screening effect of magnetic field from air gaps (reduction in electromagnetic emission, minimization of losses associated with magnetic field near the air gap and minimization of couplings between magnetic elements through the external yoke) and allows to maintain a symmetry of magnetic fields distribution (equal number of volts-per-turn, independently on the position on the column).
  • the second embodiment similarly as the first one, comprises air gaps G2 in the yoke connecting the column 1 1 , around which the transformer windings are wound, with the columns 14 and 15 with the resonant inductor windings L2A, L2B.
  • the direction of magnetic induction produced by the transformer winding L1 is shown with a dashed line and the direction of magnetic induction produced by he resonant inductor windings L2A, L2B is represented by a dashed-and-dotted line.
  • the height of the column 1 1 is larger than the distance between the column 1 1 and columns 14, 15, and therefore the transformer winding L1 can be wound as a single-layer winding or, in the case of a larger length of the column 1 1 , as a pitched winding.
  • a single-layer wound transformer winding L1 allows to reduce windings losses (reduction of the proximity effect) and also to attain as large as possible relative length of the common magnetic path (losses reduction in magnetic material) and enables a flat, planar construction. Reduction in parasitic capacitances of the transformer windings enables to increase the operating frequency.
  • Fig. 7 shows schematically the third embodiment of the integrated inductor
  • Fig. 8 shows the example of its application in the resonant power supply circuit.
  • the integrated inductor according to the third embodiment differs from the integrated inductor according to the second embodiment in that it has a four- element resonant inductor which, apart of windings L2A, L2B wound around columns 14, 15 parallel to the column 1 1 , has also windings L2C, L2D wound around columns 16, 17 parallel to the yoke 12, 13. That allows to additionally increase the volume of the magnetic material in which the reduction of magnetic induction occurs and, consequently, reduction of losses in the magnetic core.
  • the solution incorporates a quality-factor limiting circuit that consists of the control winding L3 connected with inductor L5 and a diode voltage limiter PD1 .
  • Fig. 9 shows schematically the fourth embodiment of the integrated inductor's spatial structure wherein the six-part resonant inductor's windings L2A, L2B, L2C, L2D, L2E, L2F are wound around columns 31 , 32, 33, 34, 35, 36, arranged circumferentially around the column1 1 carrying the transformer winding.
  • the columns 31 -36 can be curvilinear and in this embodiment they have the form of a half of a torus and thus facilitate the construction of a bobbin (also in the toroidal form) and winding of coils, and enable achieving significant reduction in core losses.
  • the circumferential arrangement of columns 31 -36 allows minimization of air gaps and thus effective reduction of magnetic flux leakage from the integrated magnetic element as well as compact, low profile construction and, consequently, substantial reduction of parasitic inter-turn capacitances.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

La présente invention a trait à une bobine d'inductance intégrée qui comprend une bobine d'inductance à enroulements multiples dotée d'un enroulement de transformateur (L1) et une bobine d'inductance résonnante (L2). Les sections (1), (2) du circuit magnétique de l'enroulement de transformateur (L1) sont incorporées dans des circuits magnétiques d'au moins deux parties (L2A), (L2B) d'une bobine d'inductance résonnante (L2) de manière à former des parties communes de circuit magnétique de la bobine d'inductance à enroulements multiples (L1) et une bobine d'inductance résonnante (L2) en au moins deux parties (L2A), (L2B), l'enroulement de transformateur (L1) de la bobine d'inductance à enroulements multiples étant enroulé autour d'une colonne (11), qui est dotée au moins d'un entrefer (G) pourvu d'une largeur conçue de manière à ce que l'induction magnétique produite par la bobine d'inductance résonnante (L2) en au moins deux parties (L2A), (L2B) n'excède pas 25 % de l'induction magnétique produite par l'enroulement de transformateur (L1) de la bobine d'inductance à enroulements multiples.
PCT/EP2012/055099 2011-03-23 2012-03-22 Bobine d'inductance intégrée et procédé de réduction des pertes dans une bobine d'inductance intégrée WO2012126993A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201280014354.0A CN103635979A (zh) 2011-03-23 2012-03-22 集成电感器和用于减小集成电感器中的损耗的方法
US14/005,268 US9514875B2 (en) 2011-03-23 2012-03-22 Integrated inductor and a method for reduction of losses in an integrated inductor
EP12713924.4A EP2689433B1 (fr) 2011-03-23 2012-03-22 Bobine d'inductance intégrée et procédé de réduction des pertes dans une bobine d'inductance intégrée
CA2829807A CA2829807A1 (fr) 2011-03-23 2012-03-22 Bobine d'inductance integree et procede de reduction des pertes dans une bobine d'inductance integree

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL394316 2011-03-23
PL394316A PL221896B1 (pl) 2011-03-23 2011-03-23 Zintegrowany element indukcyjny

Publications (2)

Publication Number Publication Date
WO2012126993A2 true WO2012126993A2 (fr) 2012-09-27
WO2012126993A3 WO2012126993A3 (fr) 2012-11-15

Family

ID=45953100

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/055099 WO2012126993A2 (fr) 2011-03-23 2012-03-22 Bobine d'inductance intégrée et procédé de réduction des pertes dans une bobine d'inductance intégrée

Country Status (6)

Country Link
US (1) US9514875B2 (fr)
EP (1) EP2689433B1 (fr)
CN (1) CN103635979A (fr)
CA (1) CA2829807A1 (fr)
PL (1) PL221896B1 (fr)
WO (1) WO2012126993A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103078472A (zh) * 2012-10-25 2013-05-01 中国船舶重工集团公司第七二三研究所 用于微波功率模块的高压电源磁性组件一体化集成方法
EP2978119A1 (fr) * 2014-07-23 2016-01-27 Transon Power Units BV Convertisseur avec transformateur et condensateurs commutés comme convertisseur cc/cc auxiliaire

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103595367B (zh) * 2013-11-07 2017-03-08 华为技术有限公司 一种磁集成器件及一种功率转换电路
CN103903840B (zh) * 2014-04-16 2017-05-10 沈阳工业大学 一种具有补偿偏磁功能的电力变压器
CN106464017B (zh) 2014-04-25 2020-05-19 飞利浦灯具控股公司 与电力传输天线集成的开关模式电源驱动器
WO2015192133A2 (fr) 2014-06-13 2015-12-17 University Of Maryland Chargeur embarqué et intégré du type entre le réseau électrique et le véhicule (g2v) et entre le véhicule et le réseau électrique (v2g) et à double sortie pour des véhicules électriques enfichables
CN104022698A (zh) * 2014-06-20 2014-09-03 沈阳工业大学 兼具直流偏磁及无功补偿功能的新型电力变压器控制系统
CN105719784B (zh) * 2014-07-23 2019-01-15 杨玉岗 一种目字形磁集成耦合电感器
CN105336484B (zh) 2014-08-06 2018-05-01 上海电科电器科技有限公司 电流互感器
US10763028B2 (en) * 2015-04-10 2020-09-01 Delta Electronics, Inc. Magnetic component and magnetic core of the same
TWI557759B (zh) * 2015-04-10 2016-11-11 台達電子工業股份有限公司 集成式電感及其集成式電感磁芯
CN106469602A (zh) * 2015-08-20 2017-03-01 艾默生网络能源有限公司 一种磁性元件、开关装置及电气设备
US10910150B2 (en) * 2015-11-30 2021-02-02 Intel Corporation Reconfigurable coupled inductor
CN106998142B (zh) 2016-01-25 2019-08-30 台达电子企业管理（上海）有限公司 多路并联的谐振变换器、电感集成磁性元件和变压器集成磁性元件
CN107134358A (zh) * 2016-02-26 2017-09-05 艾默生网络能源有限公司 一种电感绕制方法及装置
CN107393705B (zh) * 2016-03-11 2022-02-08 马克西姆综合产品公司 集成变压器和耦合电感器以及相关联的开关功率转换器和方法
CN105761880B (zh) * 2016-04-20 2017-12-29 华为技术有限公司 一种薄膜电感和电源转换电路
WO2018031547A1 (fr) 2016-08-08 2018-02-15 Witricity Corporation Système d'inducteur ayant un matériau partagé pour l'annulation du flux
CN109326419A (zh) * 2017-07-31 2019-02-12 联合汽车电子有限公司 集成器件及其制作方法与直流变换器
CN107919216B (zh) * 2017-11-01 2019-07-23 西安交通大学 一种磁集成混合式配电变压器
US10186949B1 (en) * 2017-11-09 2019-01-22 International Business Machines Corporation Coupled-inductor DC-DC power converter
EP3496115A1 (fr) 2017-12-08 2019-06-12 Fideltronik Poland sp. z o.o. Ensemble de transformateur-inducteur intégré
DE102018203263A1 (de) * 2018-03-06 2019-09-12 Audi Ag Ladeeinrichtung für ein Kraftfahrzeug
DE102018112100A1 (de) * 2018-05-18 2019-12-05 Tdk Electronics Ag Drossel mit hoher Gleichtaktinduktivität
US11750087B2 (en) * 2018-05-24 2023-09-05 Astec International Limited Totem pole bridgeless PFC power converters
CN108777220B (zh) * 2018-05-28 2022-01-21 台达电子工业股份有限公司 磁性元件及开关电源装置
CN111740631B (zh) * 2019-03-19 2021-11-02 台达电子工业股份有限公司 谐振变换器及其变压器的制造方法
US20210012944A1 (en) * 2019-07-08 2021-01-14 North Carolina State University Transformer designs for very high isolation with high coupling
CN110310818A (zh) * 2019-07-23 2019-10-08 浙江万安亿创电子科技有限公司 一种谐振电感
US11521792B2 (en) * 2019-09-16 2022-12-06 Utah State University Wireless power transfer with active field cancellation using multiple magnetic flux sinks
CN111010045B (zh) * 2019-12-29 2022-10-25 国网河北省电力有限公司雄安新区供电公司 一种直流配电网用双有源桥变换器
US11881340B2 (en) * 2020-01-22 2024-01-23 Murata Manufacturing Co., Ltd. Inductor structure
US11616397B2 (en) * 2020-08-12 2023-03-28 Medtronic, Inc. Magnetic alignment of transcutaneous energy transfer coils

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5726615A (en) 1994-03-24 1998-03-10 Bloom; Gordon E. Integrated-magnetic apparatus
US5886516A (en) 1997-05-30 1999-03-23 Delco Electronics Corp. Series resonant converter transformer assembly having integral inductor tank elements
US7525406B1 (en) 2008-01-17 2009-04-28 Well-Mag Electronic Ltd. Multiple coupling and non-coupling inductor
PL393133A1 (pl) 2010-12-03 2012-06-04 Akademia Górniczo-Hutnicza im. Stanisława Staszica Sposób zwiększenia mocy elektrycznej przenoszonej przez zintegrowany element indukcyjny i zintegrowany element indukcyjny

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1606777A (en) * 1923-05-08 1926-11-16 Western Electric Co Inductance device
US3876938A (en) * 1972-06-19 1975-04-08 Kabushikikaisha Tokyo Keiki To Magnetic switch for a pulse generator, receiver, and transducer
DE3305708A1 (de) * 1983-02-18 1984-08-23 Transformatoren Union Ag, 7000 Stuttgart Drehstromdrosselspule mit fuenfschenkelkern
CA1258881A (fr) * 1987-04-15 1989-08-29 Leonard Bolduc Transformateur-inducteur auto-regule a entrefers
US4975649A (en) * 1989-12-18 1990-12-04 Albar, Inc. Method and apparatus for sensing loss of regulation in a ferroresonant transformer
US5225784A (en) * 1991-02-25 1993-07-06 National Research Council Of Canada DC Current comparator circuit for generating an adjustable output proportional to an input signal
US5416458A (en) * 1991-04-25 1995-05-16 General Signal Corporation Power distribution transformer for non-linear loads
US5194817A (en) * 1991-07-18 1993-03-16 James G. Biddle Co. Apparatus and method for testing insulation using a pulsed resonant power supply
CN2202369Y (zh) * 1994-05-03 1995-06-28 中国矿业大学 自动跟踪补偿的消弧线圈
US5600293A (en) * 1994-06-14 1997-02-04 The United States Of America As Represented By The Secretary Of The Army Integrated magnetic exploding foil initiator fire set
US5684678A (en) * 1995-12-08 1997-11-04 Delco Electronics Corp. Resonant converter with controlled inductor
US6606260B2 (en) * 2001-10-29 2003-08-12 The Chamberlain Group, Inc. Switch mode power supply for a telephone entry system or the like
US6975098B2 (en) * 2002-01-31 2005-12-13 Vlt, Inc. Factorized power architecture with point of load sine amplitude converters
EP1559120B1 (fr) * 2002-10-30 2008-01-09 Pyongyang Technical Trading Centre Transformateur
SE525698C2 (sv) * 2003-06-27 2005-04-05 Forskarpatent I Syd Ab Transformator med skydd mot likströmsmagnetisering förorsakad av nollföljdsström
US7136293B2 (en) * 2004-06-24 2006-11-14 Petkov Roumen D Full wave series resonant type DC to DC power converter with integrated magnetics
CN2796210Y (zh) * 2005-05-11 2006-07-12 中国矿业大学 零序短路高阻抗接地变压器式消弧线圈
KR100547289B1 (ko) * 2005-05-18 2006-01-26 주식회사 피에스텍 간헐 모드로 동작하는 동기 정류형 직렬 공진 컨버터
TWI326917B (en) * 2007-02-01 2010-07-01 Ind Tech Res Inst Phase-change memory
KR101004823B1 (ko) * 2007-12-27 2010-12-28 삼성전기주식회사 누설 인덕턴스가 증가된 트랜스포머
KR100975926B1 (ko) * 2008-08-08 2010-08-13 삼성전기주식회사 공진 인덕턴스를 갖는 트랜스포머
EP2299456B1 (fr) * 2009-09-17 2016-08-24 DET International Holding Limited Composant magnétique intégré
US8120457B2 (en) * 2010-04-09 2012-02-21 Delta Electronics, Inc. Current-controlled variable inductor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5726615A (en) 1994-03-24 1998-03-10 Bloom; Gordon E. Integrated-magnetic apparatus
US5886516A (en) 1997-05-30 1999-03-23 Delco Electronics Corp. Series resonant converter transformer assembly having integral inductor tank elements
US7525406B1 (en) 2008-01-17 2009-04-28 Well-Mag Electronic Ltd. Multiple coupling and non-coupling inductor
PL393133A1 (pl) 2010-12-03 2012-06-04 Akademia Górniczo-Hutnicza im. Stanisława Staszica Sposób zwiększenia mocy elektrycznej przenoszonej przez zintegrowany element indukcyjny i zintegrowany element indukcyjny

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ZHANG, YANJUN XU; DEHONG MINO; KAZUAKI SASAGAWA, KIYOAKI: "1 MHz-1 kW LLC Resonant Converter with Integrated Magnetics", APPLIED POWER ELECTRONICS CONFERENCE, APEC 2007 - TWENTY SECOND ANNUAL IEEE, 25 February 2007 (2007-02-25), pages 955 - 961, XP031085326
ZIWEI OUYANG; ZHE ZHANG; OLE C. THOMSEN; MICHAEL A. E. ANDERSEN; OLE POULSEN; THOMAS BJORKLUND: "Planar Integrated Magnetics Design in Wide Input Range DCDC Converter for Fuel Cell Application", ENERGY CONVERSION CONGRESS AND EXPOSITION, 12 September 2010 (2010-09-12), pages 4611 - 4618, XP031787604

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103078472A (zh) * 2012-10-25 2013-05-01 中国船舶重工集团公司第七二三研究所 用于微波功率模块的高压电源磁性组件一体化集成方法
EP2978119A1 (fr) * 2014-07-23 2016-01-27 Transon Power Units BV Convertisseur avec transformateur et condensateurs commutés comme convertisseur cc/cc auxiliaire

Also Published As

Publication number Publication date
EP2689433B1 (fr) 2015-07-01
PL394316A1 (pl) 2012-09-24
US9514875B2 (en) 2016-12-06
EP2689433A2 (fr) 2014-01-29
CA2829807A1 (fr) 2012-09-27
CN103635979A (zh) 2014-03-12
PL221896B1 (pl) 2016-06-30
US20140043127A1 (en) 2014-02-13
WO2012126993A3 (fr) 2012-11-15

Similar Documents

Publication Publication Date Title
US9514875B2 (en) Integrated inductor and a method for reduction of losses in an integrated inductor
TWI690952B (zh) 磁性元件及其適用之電源轉換裝置
US10283261B2 (en) Power conversion device
EP2624260B1 (fr) Convertisseur à serrage actif, avec composant magnétique
TWI497908B (zh) 改善濾波器性能的方法及功率變換裝置
EP3136404B1 (fr) Bobine de couplage
US20110063065A1 (en) Intergrated magnetic component
Haldi et al. A 3.5 kW wireless charger for electric vehicles with ultra high efficiency
WO2013031711A1 (fr) Réacteur et dispositif électrique
Naseem et al. Quad-active-bridge converter with current balancing coupled inductor for SST application
US20150228397A1 (en) Coiled power device comprising a winding of a first coiling and a winding of a second coiling which cover the same portion of a magnetic core member
US20140286054A1 (en) Inductive component and use
CN102385978A (zh) 集成有感应器的变压器
Dai et al. A dual-frequency WPT based on multilayer self-decoupled compact coil and dual CLCL hybrid compensation topology
US10985574B2 (en) Resonant power transfer
EP2647117B1 (fr) Alimentation électrique à mode résonant comprenant une inductance intégrée
CN211744355U (zh) 一种自主均流低损耗llc电路
US20170040097A1 (en) Switching converter circuit with an integrated transformer
Thai et al. Implementation and analysis of large winding ratio transformers
Rehlaender et al. An integrated transformer for LLC resonant converter applications of low output voltages and high currents
Poongothai et al. Analysis of High Frequency, High Ratio Transformer configurations for DC-DC Converter Applications
Huang et al. An Integrated Three-phase Transformer for Partial Parallel Dual Active Bridge Converter
CN117766268A (zh) 基于虚拟相对磁导率原理的无铁芯变压器
TW201523655A (zh) 變壓器及使用該變壓器的電源供應電路
KR20210048868A (ko) 다중 llc 공진형 컨버터

Legal Events

Date Code Title Description
DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
ENP Entry into the national phase

Ref document number: 2829807

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 2012713924

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 14005268

Country of ref document: US

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12713924

Country of ref document: EP

Kind code of ref document: A2